Metallic double hung window



0a 29, 1940. L G 2,219,593

METALLIC DOUBLE nuns wrimow 2 She ets-Sheet 1 Filed Nov '7, 193a E's-E.

Oct. 29, 1940. v N 2,219,593

METALLIC DOUBLE HUNG WINDOW Filed Nov. '7, 1938 v2 Sheets-Sheet 2 I IN VEN TOR.

-' ORNEY Patented Oct. 29, 1940 UNITED STATES- PATENT OFFICE I 2,219,593 METALLIC DOUBLE HUNG WINDOW Albert Lang, Berkeley, Calif. Application November '1, 1938, Serial No. 239,218

8 Claims.

The present invention relates to double hung windows of metallic construction and more particularly to structural improvements in the window frame and sashes and the method of forming same.

One of the objects of the invention is to provide an improved construction for double hung windows and sashes made entirely of metal.

Another object 022' the invention is to provide a new and improved method of forming window frames and sashes from a continuous metallic strip in a new and novel manner.

Other objects and advantages of the invention will be in part evident to those skilled in the art and in part pointed out hereinafter in connection with the accompanying drawings wherein there is shown by way of illustration and not of limitation a preferred embodiment thereof.

In the drawings:

Figure 1 is a perspective view-of a double .hung

window frame and sashes constructed in accordance with the present invention,

Figure 2 is a vertical sectional view taken through Fig. 1 with parts broken out and showmg details of construction,

Figure 3 is a horizontal sectional view of the frame and sashes taken through the upper sash of Fig. 1,

Figure 4 is a detailed perspective view showing the sealing means employed between the upper and lower sashes of the window frame,

Figure 5. is a fragmentary perspective view showing the window frame forming strip as it is mitred prior to the formation of the frame,

Figure 6 is a view similar to Fig. 5 showing the frame forming strip after being bent upon the mitre cut to form a corner of the frame,

Figure '1 is a fragmentary perspective view of a section of the sash forming strip as it is mitred prior to the bending operation,

Figure 8 is a view similar to Fig. '7 showing the sash forming strip after it has been bent to complete the corner of the sash, and

Figure 9 is 5 view showing the manner of up-setting the lower end of the window frame to provide for drainage.

During recent years, there has steadily developed a trend toward the use of various metallic' units which can be manufactured at centralized points under factory conditions for dwellings and other buildings. These units have included such elements as various forms of cabinets, ranges and other home facilities which are built into the building at the time of its construction.

More recently there has also developed a de-- a fragmentary vertical sectionalmand for metallic windows of the double hung type. This latter form of window being particularly preferred over the so-called metallic casement windows that have long 'beenin use on larger structures such as ofiice buildings, hos- 5 pitals and other public buildings. While these casement windows have found a limited application to dwellings, they have not met with unqualified favor.

As stated hereinbefore, it is a primary object 10 of the present invention to provide a metallic window frame with metallic sashes that can be manufactured with factory facilities and sold as an assembled unit for installation in buildings fabricated of wood, stucco and concrete and 1 which can be produced and sold at a price competitive with the present double hung window frames that are in themain now constructed of wood.

. As shown in Figure 1 of the drawings, the win- 20 dow frame and sash contemplated by the present invention comprises an outer frame I0 of channel-like construction havin parallel outwardly extending side walls I l and 2 which respectively form the inside and outside faces of the head, 25 jambs and sill of the windowframe. In its formation the frame In, as will hereinafter appear, is provided with an inwardly disposed rib or flange portion 13 which, in conjunction with a removable channel-like parting strip l4, provides no a guide means for the lower sash designated by the numeral IS. The respective flanges of the strip l4 form a parting bead I! and a relatively spaced outer window stop i8 which cooperate to provide a guide means for the upper sash. The 36 upper sash designated by the numeral l6 as 11- lustrated is then disposed between the outer sash stop l8 and parting bead ll of the channel-like member l4 and is guided thereby in its upward and downward movements. In addition to the window frame l0 and the sashes l5 and I6 which are constructed entirely of metal in a new and novel manner as will hereinafter appear, the frame l0 and the sashes l5 and I6 are adapted to be provided with any suitable form of sash bal- 5 ancing means, which means as will be understood may be concealed within the channel formed between the side wall forming flanges ll and H of the frame l0 when the frame is installed in the wall of a building.

Upon referring to Figures 2 and 3 of the drawings, it will be noted that the inwardly disposed rib or flange portion l3 of the frame l0 extends perpendicularly and inwardly from the inner or light opening defining wall or web Hla of the 55 frame It and is disposed at the room side of the frame adjacent the inside flange ll thereof where the lower sash l5 may be positioned thereagainst. It will also be noted that the parting bead IT, in addition to retaining the lower sash l5 against the inner window or sash stop l3 of the frame I 0, will serve to also space and position the upper sash IS with respect to the lower sash l5. At the outside of the upper sash Hi the channel-like parting strip I4 is shown guides between which the upper sash l6 moves. Thus the inner sash stop 13 and the parting bead i1 define an inner sash groove while said parting bead i1 and the outer sash stop 68 define an outer sash groove. The channel-like parting strip 84 the present infact, it is conceivable that the rib might be provided by merely forming an outwardly extending fold in the wall i I of the frame III. The pur pose of this rib 20 is to provide a molding to its head, lambs and sill forming portions. As a result the frame i0 is adapted, as will hereinafter appear, to be fabricated from a single continuous strip of sheet metal in a new and novel manner.

It will also be'noted that the ribs 20 and 2! form rabbets 20a and Zia on both the interior and exterior sides of the frame, which rabbets are adapted to receive screen frames or the like.

In addition to providing a novel and inexpensive outer window frame, the present invention also contemplates the provision of a new and novel form of sash frame which possesses characteristics similar to those embodied in the window frame l0 and which therefore also makes possible the formation of both the window frame 10 and the sash frame II and IS in accordance with a similar method of manufacture. As shown, the frames of the sashes l5 and and similar configuration and cross-section around their tops, sides and bottom portions. It will also be noted that the sash frames like the window frame in are of a channel-like cross-section having an inner light opening defining wall 22 and two spaced parallel outwardly extending flanges 23 and 24 that provide respectively inside and outside surfaces of the sash frames. sash frames, like the window frame I, are also provided with a smaller inwardly disposed channel forming portion 25 that forms a cleat against which glazing glass, designated by the numeral 26, may be secured in the conventional manner by the application of putty 27.

flanges 28 that define the outer surface of the sash frames These flanges 28, as will hereinafter appear, in connection with the method of manufacture are comparable to the aligned walls of the channels which form the plaster stops 20 the frame ill so that during the Before proceeding with a description of the method provided for forming the frame Hi and ings, the right angled member be secured tween the overlapping flanges and 3| of the members 29 and 32, the flange 30 is shown as provided with an upwardly and diagonally extending flexible Weatherstrip 34. This weatherstrip 34 may be of any suitable material.

the edge of the flange 30 as at and extends upwardly and outwardly in such a manner that it will be engaged by the flange 3| when the meeting rails of the sashes l5 and 16 are brought into alignment. With this arrangement it will be readily seen that when the sashes I5 and i6 are in their closed positions upon the frame Hi the window opening will be completely closed. In this connection it should be stated that while Figures 2 and 3 of the drawings show the sashes it are of uniform this arrangement it will be seen l8 and I8 as spaced somewhat from their respective guides, this dimension will be to a substantially sliding fit when the sashes are properly mounted upon the frame l0. As an additional adjunct it is conceivable thatthe open sides and ends of the sashes may. be closed if desired throughout their entire periphery by an additional closing member which'may be spot welded or otherwise secured to the oppositely disposed flanges 28 at the outer edges of the sash frames. These additional frame closing members will cooperate with the members 28 and 32 to provide a continuous outer surface about the sashes l5 and IS. The use of such a member on the sides of sashes l5 and I8, however, is not in any way necessary as these sides of the sashes are concealed and protected against the weather by the frame l8 and the sash guides provided thereupon. In fact, it would be preferable where the use of screws I9 is relied upon to' secure the channel forming member |4 upon the frame to omit such a frame channel closing member and thus provide a clearance over the heads of the screws Is that are relied upon to secure the channel member H to the window frame l0.

Reference is now made to Figures 5 and 6 of the drawings for the purpose of describing the novel method by which the double hung window frame is fabricated from a single continuous strip of sheet metal. As illustrated'ln Fig. 5 and as has been stated above, the strip from which the frame I8 is constructed is rolled as one piece from a continuous fiat strip of sheet metal into a substantially channel-like configuration with the cleat forming portion |3 extending outwardly from the bottom of said channel configuration and with the plaster stops 28 and 2| formed respectively on the inside and outside walls H and I2 of the finished frame. After the strip has thus been rolled it is passed through a mitre cutting machine where a mitre cut 35 will be formed laterally therethrough with the apex of the mitre cut 35 positioned just inside of the aligned side walls of the plaster stops 20 and 2|. shown it is the outer walls designated respectively by the numerals 38 and 31 of the'plaster stops 20 and 2| that are aligned and uncut by the mitre 35. It will be understood that the mitre cuts 35 will be located along the pre-formed strip at properly spaced points so as toprovide for an alternate location of the head, jambs, and sill of the finished frame and that the ends of the strip when thus cut to provide the four sides of the frame will be mitred at its ends so as to pro! vide a joint between the meeting ends of the strip after the strip is bent into rectangular form to complete the frame.

When the strip has thus been mitred and bent as illustrated in Fig. 6, the bending thereof will talre place in the outer walls 38 and 31 of the plaster stops 2|) and 2|. These uncut portions of the strip forming what might be termed hinges between the adjacent portions of the strip. With that the uncut side walls 38 and 31 of the plaster stops 20 and 2 I, because of their alignment and lateral spacing, will function to exactly position the mitred portion of the channel-like strip so as to bring the inner meeting walls of the mainchannel section into exact alignment. At thispoint it may be said that during this bending operation the small outwardly extending portion of the side walls II and I2 will be confined in the bending machine so as to prevent any undesirable deflection thereof during the bending operation.- In other words,

reduced .ment and provide an these portions of the side walls which extend outwardly beyond the uncut portions of the plaster stops 2|! and 2| will be stretched in a manner well understood in the art. At the same time the outer walls 38 and 31 of the plaster stops 2|! and 2| will retain their proper right angled alignuninterrupted wall against which the plaster is placed. As a final step to frame and reinforce the corners. the insertion of a right angled member 38 in forms the cleat |3 upon the face of the head, lambs and sill of the finished frame. The member 38 is constructed of such dimensions that it will extend around the corners and-fit snugly into the channel described where it may be spot welded or otherwise secured in place. While it is conceivable that the right angled member 38, because of its inward disposition from the uncut portions in-the side walls II and I2 of the frame may be suflicient for all practical purposes, it is contemplated that an additional securing means in the form of another right angled strip 39 may if desired be secured to the inside surface of the light opening defining wall of the channel-like section. Instead of this latter right angled member 39, it is also conceivable that a right angled member 48 similar to the construction of the member 38 may be pressed in and secured within the channel that forms the plaster stop 2| in the wall l2 of the flnished'frame. In practice it will be understood that the-choice of the see curing and reinforcing means 38, 39 and 48 will be dictated by the nature that all three securing and reinforcing means may be resorted to but in smaller frames it is possible that any one or two of these securing and reinforcing means 38, 39 and 40 may be sufflcient.

Reference is now made to Figures 7 and 8 of the drawings for a further description of the herein disclosed method of manufacture as it pertains to the construction of the sash frames.

As illustrated in Fig. '1, the strip from which the sash frames l5 and I8 are formed is rolled to form a channel-like configuration having side walls 23 and 24 with the small channel 25 at one side thereof to form the cleat 28 against which the glazing glass is secured. At the outer edges of the side walls 23 and 24 of the channel these walls are bent inwardly so as to provide aligned oppositely disposed flanges 28. After the strip has been thus formed it is passed through the mitre cutting machine and is provided with mitre cuts 4| at points therealong which will the corners of a finished sash the mitre cut 4| extends through the cleat forming channel 25 and the light opening defining wall 22 of the strip to a point corresponding to the inside surface of the oppositely disposed flanges 28. After the sash forming strip has thus been rolled and mitred, the mitre cuts 4| are ,closed by bending the strip on the uncut oppos'tely disposed flanges 28 so as to bring the adjacent sides of the frame into aligned relation as illustrated in Fig. 8 of the drawings. With this arrangement it will be noted that the oppositely disposed flanges 28 operate in identically the same manner as do the uncut walls 38 and 31 of the plaster stops 28 and 2| of the main sashframe l8, and as a result the meeting edges of the sash frame at the mitre cuts 4| will be brought into exact alignment as the corner is thus formed. After the strip has been frame.

the channel that and size of the frame. to be constructed. In larger frames it is possible bent as illustrated in Fig. 8 to complete the tends through said connecting web and into said corners thereof a securing and reinforcing memoutwardly extending parallel sides to the inside her 42 will be forced into and secured in the surface of said aligned flanged portions andbeing channel 25 that forms the cleat 28. This reinbent on said flanged portions to form the corners forcing member 42 like the reinforcing member thereof. 4 I! on the window frame III will be dimensioned 2. A metal frame for double hung windows so as to fit snugly into the channel 25 after which comprising a continuous strip of sheet metal it may be secured in place by spot welding and/or formed of uniform cross-section throughout and other suitable means. As a further similarity bewith an inner connecting web to deflne a light tween the sash forming frames and the window opening and having parallel outwardly extending n frame it will be noted that the flanges 28 like the sides at each end of said inner connecting web uncut walls 36 and 31 of the plaster stops and forming the side walls of a channel about the II upon the window frame are oppositely disframe, each of said outwardly extending parallel posed in alignment and project inwardly toward sides having outwardly disposed channel in 1d each other. The sashes l5 and I6- like the window portions to form plaster stops upon the inside and u 50 While I have, for the sake of clearness and in mg the inside and outsi frame ID are also completed by providing the outside surfaces of the frame, said plaster stops ends of the sash forming strip with mitred ends being aligned with respect to each other so that which when brought into alignment can be seat least one side wall of each channel forming cured together in the manner above described to portion will be in alignment with a side wall of all complete the sash frame. the opposite plaster stop and along a line extend- U Reference is now made to Figure 9 of the drawing parallel with the inner connecting web of ings. As will be apparent from the above, the the frame, said frame being formed by providing double hung window frame i0 unlike all other a mitre cut at points corresponding to the corners metallic double hung win w fram s f th p i r of the frame which extends through the inner as art. is onstru ted f m a s n pr -fo m d strip connecting web and into said parallel sides to the to of sheet metal and ther r the head, lambs aligned side walls of said plaster stops, whereby and sill thereof when o p eted W be of the the sides and inner-connecting web of the frame same co fi u at o In order, o p ov e o will be held in alignment by the uncut side walls d in at the sill, the present invent n s of the plaster stops when the frame is formed.

0, cont p a s a sl ght upsetting of the lightopena. A sheet metal frame for double hun winso in defining wall in the sill formin P i of dows comprising sill, jamb and head portions of the frame. This is accomp i ed as illustrated uniform channel-iike cross-section throughout in this figure of the draw n s y subjecting the and providing relatively spaced side walls forml Eht opening definin Wall of t 1, desiflnated ing the insideand outside faces of the frame, an

35. by the numeral 43, to an inwa d p re Whioh inner web connecting the inner edges of said side will deflect this wall of the frame inwardly to g n defining a light opening and an inner p ide a sli ou wa slope from the elect flange circumscribing said light opening and prol: to the outer wall '2 0f the finished frame. In jecting perpendicularly from said connecting web. forming deflection be seen the a bead on the jamb and head portions a) loner Wan,- deslgnated by the numeral 0f the of said connecting web spaced from said inner 40 channel which fOI'mS the cleat be upset perpendicular flange to define an inner sash as at to permit this deflection of the wall 43 groove, and an outer window stop on Said jamb which forms the sill. It will be understood that and head portions f said connecting web spaced the amount of this deflection 1n the wall 43 will from said parting bead to define an outer sash 5 needs be only sufllcient to provide for drainage. groove.

, For example, an upsetting in the amount of one- 4. A sheet metal frame for double hung wim eighth to one-quarter inch in a frame of the dows com sin sin amb and head Inc of character described will be suflicient for all pracuniform g a l like cros p0 ns t purposes. and providing relatively spaced side walls formde faces of the frame, so

order to disclose the invention so that the same an inner web come can be readily understood, described and illusside walls and definmg a limited Specific devices and arrangements, I inner flange circumscribing said light openin sire to have it understood that this invention is and projecting perpendicularly from said not limited to the specific means discmsed, but necting web, and a channel-like parting strip on 55 may be embodied in other l [that will the jamband head portions of said connecting gest themselves to persons skllled in the art. It web having an inner fla formed to provide a is believed that this invention is new and it is parting bead spaced from aid inner perpendicudesired to claim it 50 that all Such changes as lar flange to define an inner sash groove and an 00 come wi hin e sc pe of t appended claims outer flange formed to provide an outer window are to be considered as part of this invention. st spaced from said parting bead o define an Having thus described my invention, what I outer sash groove.

claim and desire to secure by Letters Patent is- 5 A Sheet t l frame for double hung A metallic frame for double hung Windows dows comprising sill, jamb and head portions of 05' comprising asmp of sheet metal formed of uniform channel-like cross-section throughout form cross-section throughout and with an inner connecting web to define a light opening and in I g the inside and outside faces of the frame, interstate?princesses: is: an we of sad outwardly extending parallel sides having slde walls and defining light i and an 70 flanged portions near their outer edges disposed inner flange circumscribing said hght opening in alignment with each other on a line extendand Projecting perpendicularly from said ing parallel to the connecting web of the frame, neeting Web. a P g Strip of Channel m said frame being formed by providing a mitre cut d p d to be positioned n h l mb nd h ad and providing relatively spaced side walls form- 7 at points corresponding to the corners which exp n of Said nn n W and formed to "aowansrorming provide a parting bead and an outer window stop spaced therefrom to define an outer sash groove, said parting strip being insertable in said light opening from the outer or weather side of the frame to position said parting bead in spaced relationship relative to said perpendicular inner flange to define therewith an inner sash groove, and means for securing said parting strip in such position.

6. A window frame unit including sill, jamb and head portions comprising a strip of sheet metal .of uniform channel-like cross-section throughout and providing relatively spaced side walls forming the inside and outside faces of said frame unit, an inner web connecting the inner edges of said side walls and defining a light opening, and an inner fiange circumscribing said light opening and projecting perpendicularly from said connecting web to form a window sto said unit being formed by providing mitre cuts at points corresponding to the corners thereof extending through said connecting web and into said side walls to leave outer uncut portions and being bent on said uncut portions to form said corners.

'1. A window frame unit including sill, jamb and head portions comprising a strip of sheet metal of uniform channel-like cross-section throughout and providing relatively spaced side the inside and outside faces of said i'rame unit, an inner web connecting the indicular wall of both ner edges of said sidewalls and defining a light opening, and an inner flange circumscribing said light opening and projecting perpendicularly from said connecting web to form a window stop, each side wall being formed to provide a rib outwardly disposed perpendicular thereto to form therewith a rabbet adapted to receive a screen frame or the like.

8. A window frame unit including sill, jamb and head portions comprising a strip of sheet metal of uniform channel-like cross-section throughout and providing relatively spaced side walls forming the inside and outside faces of said frame unit, an inner web connecting the in- .ner edges of said side walls and defining a light opening, and an inner flange circumscribing said light opening and projecting perpendicularly from said connecting web to form a window stop, each side wall being formed to provide a channellike rib outwardly disposed perpendicular thereto to form therewith a rabbet adapted to receive a screen frame or the like, the outside perpenof said ribs being in alignment and parallel with said light opening defining web, said unit being formed by providing mitre cuts at points corresponding to the corners thereof extending through said web and into said side walls to said outside aligned perpendicular walls of said ribs and being bent on said aligned walls to form said comers.

ALBERT LANG. 

